822442 has 8 divisors (see below), whose sum is σ = 1241316. Its totient is φ = 408672.

The previous prime is 822433. The next prime is 822517. The reversal of 822442 is 244228.

It can be written as a sum of positive squares in 2 ways, for example, as 793881 + 28561 = 891^2 + 169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843 + ... + 1534.

2⁸²²⁴⁴² is an apocalyptic number.

822442 is a deficient number, since it is larger than the sum of its proper divisors (418874).

822442 is a wasteful number, since it uses less digits than its factorization.

822442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552.

The product of its digits is 1024, while the sum is 22.

The square root of 822442 is about 906.8858803620. The cubic root of 822442 is about 93.6918382948.

The spelling of 822442 in words is "eight hundred twenty-two thousand, four hundred forty-two".